Group Theoretical Analysis of Phonon Assisted Optical Transition in GaSe
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概要
- 論文の詳細を見る
The selection rtules for the indirect optical transition in e- and 7-GaSe areinvestigated grotup-theoretically by using the band structure of /7-GaSe calculatedby SchIQter. Without taking into account the spin-orbit interaction, the indirecttransition is allowed only for the light with polarization vector E parallel to thecrystal c-axis (E//c) in a-GaSe as in /7-GaSe, but it is allowed both for E//c andfor E J c in 7-GaSe. 'the irreducible representations of the phonon mode associatedwith the transitions are M;(A.) in fi, M,(A.) in e and At.({') in 7. The W)(.4')mode of 7-GaSe is compatible with M.(,{.) and M.(#,) of a-GaSe, and withM7(A.), MJ(B..), M7(B..) and M;(B..) of /7-GaSe. So, the number of phohonsassociated with the indirect optical transition in GaSe is affected by the mixture ofthese modifications.
- 社団法人日本物理学会の論文
- 1978-02-15
著者
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Tatsuyama Chiei
Department Of Electronics Faculty Of Engineering Toyama University
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Tatsuyama Chiei
Department Of Electonics Faculty Of Engineering Toyama University
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ICHIMURA Shoji
Department of Electronics, Faculty of Engineering, Toyama University
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Ichimura Shoji
Department Of Electronics Faculty Of Engineering Toyama University
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